Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd2333d38678850c514eb57bf60eac5e9620d9c3bda1366da9f1a5fa110302ad2' 
  AND token = 'qqymemxKgNkOEe3m6zAWlU0Y8wIBodlXyF0RIcTBhyE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}